Question

1. supplementary angles add up to how many degrees? ans. ________ 12. which degree measure represents an obtuse angle? a) 90 b) 180 c) 120 d) 85

Explanation:

Step1: Recall supplementary - angle definition

By definition, two angles are supplementary if their sum is 180 degrees.

Step2: Recall obtuse - angle definition

An obtuse angle is an angle whose measure is greater than 90 degrees and less than 180 degrees.

Answer:

1. 180
2. c) 120